At Waterfall Security Andrew leads a team of experts who work with the world's most secure industrial enterprises. Before Waterfall, he led the development of high-end industrial control system products at Hewlett-Packard, of IT/OT middleware products at Agilent Technologies, and of the world's first industrial SIEM at Industrial Defender. Andrew is the author of two textbooks on industrial security and a co-author of the IIoT Security Framework. He co-hosts the Industrial Security Podcast, is a lecturer at the Industrial Security Institute, and contributes regularly to industrial security standards and best-practice guidance.